/usr/include/casacore/scimath/Mathematics/DFTServer.h is in casacore-dev 2.2.0-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 | //# DFTServer.h: This class contains methods for doing n-D slow Fourier transforms
//# Copyright (C) 1994,1995,1996,1999,2000,2001,2003
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: aips2-request@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
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//#
//# $Id$
#ifndef SCIMATH_DFTSERVER_H
#define SCIMATH_DFTSERVER_H
#include <casacore/casa/aips.h>
#include <casacore/casa/BasicMath/Math.h>
#include <casacore/casa/Exceptions/Error.h>
#include <casacore/casa/Arrays/Array.h>
#include <casacore/casa/Arrays/ArrayMath.h>
#include <casacore/casa/Arrays/ArrayIter.h>
#include <casacore/casa/Arrays/ArrayIO.h>
#include <casacore/casa/BasicSL/Constants.h>
#include <casacore/casa/math.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
template<class T> class Matrix;
// <summary>
// Error class for <linkto class=DFTServer>DFTServer</linkto> class
// </summary>
// <synopsis>
// Error class for <linkto class=DFTServer>DFTServer</linkto> class.
// </synopsis>
class DFTError: public AipsError
{
public:
DFTError(): AipsError("DFTError") {}
DFTError(const Char *m) : AipsError(m) {}
DFTError(const String &m) : AipsError(m) {}
virtual ~DFTError() throw() {}
};
// <summary>
// Class containing methods for doing n-D slow Fourier transforms
// </summary>
// <synopsis>
// The DFTServer class contains methods for doing n-dimensional
// Slow Fourier Transforms. (In practice, the maximum dimension is 3).
//
// </synopsis>
template<class T>
class DFTServer
{
public:
// default constructor
DFTServer();
// copy constructor
DFTServer(const DFTServer<T> &);
// Other constructors
// <group>
DFTServer(Array<T> &, Array<T> &);
DFTServer(int, int, int);
DFTServer(IPosition &, IPosition &);
// </group>
// destructor
~DFTServer();
// assignment
DFTServer<T> &operator=(const DFTServer<T> &);
// n-d real <src> <-> </src> complex dft
void rcdft(Array<T> &, Array<T> &);
// n-d complex <src> <-> </src> real dft
void crdft(Array<T> &, Array<T> &);
// n-d complex <src> <-> </src> complex dft
void cxdft(Array<T> &, Array<T> &, int);
// display only the real component of the data
void showReal(Array<T> &);
// display both the real and the imaginary components of the data
void showComplex(Array<T> &);
private:
// dimension of the both input and output data
int dimension;
// number of time data points
int numTime;
// number of frequency data points
int numFreq;
// set to 1 (true) if a crfft is done
int crFlag;
// does a complex to complex DFT
void c2c(Matrix<T> &, Matrix<T> &, int);
// turn a general array into a matrix
Matrix<T> getMatrix(Array<T> &);
};
} //# NAMESPACE CASACORE - END
#ifndef CASACORE_NO_AUTO_TEMPLATES
#include <casacore/scimath/Mathematics/DFTServer.tcc>
#endif //# CASACORE_NO_AUTO_TEMPLATES
#endif //DFT_SERVER
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